Great idea. I would offer two suggestions.
One, two of the six people currently registered on the site live in the locations they cite - they aren't travellers at all. Seems like that would undermine the USP of the site and confuse travellers. Looking at Paul's picture, his use of the wink emoji, and the fact he's bragging about his job (inadvertently or not), make it look like he's using the site to meet women. That could be a big problem.
Second and relatedly, you need to a way to stop abuse. Up-voting and moderation will be needed in some form. But also some basic safety guidelines, i.e., always meet in groups and in public places.